Photographic-printing machine



Jan. 22 1924. 1,481,472

w. c. -LAMPHIER PHOTOGRAPHIC PRINTING MACHINE Filed Feb. 2, 1922 77 Zigi lll Patented Jan. 22, 1924.

UNITED STATES WILBUR LAMPHIER, 0F NEW YORK, N. Y.

PHOTOGRAPHIC-PRINTING MACHINE.

. Appiication iiied February 2, 1922. seriai No. 533,552.

To all whom t may concern:

Be it known that I, WILiiUR C. LAMPHIER, a citizen of the United States, residin at New York city, in the county of New ork and State of New York, have invented certain new and useful Improvements in Photo` graphic-Printing Machines, of. which the following is a specilication.

This invention relates to photographic printing machines, and consists more particularly in an improved photographic machine of the type embodying a frame in which is supported a plurality of lamp boxes provided with means cooperating with the lamp boxes to clamp the negative and sensitized paper over said boxes duiing the printing operation.

The prime object of thisinvention is to provide simple, durable, economical and efficient means whereby an operator is enabled to materially increase the amount of work, and substantially double ythe capacity of the single printing machine usually employed for the purpose. n

Another object of the invention is to provide novel means whereby the machine can be fed with a new negative and unexposed paper at the same time a second iilm isbeing exposed for printing.

A further object of this invention is to so construct the machine that a. plurality of lamp boxes are provided in connection with a slidable frame having a plurality of glass plates litted therein, said frame being adapted by its movement to switch on and off the lights in the said lamp boxes.

, `The foregoing and such other objects as may appear from the ensuing description are accomplished by the construction, arrangement, Y combination, assembling and location of the parts hereinafter more fully described, illustrated in the accompanying drawings, and particularly pointed out inr the claims appended hereto, it being understood that slight changes in the precise form, proportions and minor details of the construction maybe resorted to without departing from the spirit or sacrificing any of the advantages of the invention,

In the accompanying drawings which form a part of the specification it will be seen that Figure 1 is a longitudinal section of a machine embodying my invention, taken in the plane of the dotted lines 1-1, Fig. 3.

Fig. 2 is al plan view of the same, and

Fig. 3 is a plan with the covers removed from the printing lamp boxes.

Similar numerals of reference are employed to designate corresponding parts throughout the several figures of the drawings.

In the embodiment of my invention as illustrated, it will be observed by referring to Fig. 1, that 2 indicates a table or frame constructed with a. rectangular opening 3A and supported on suitable legs 4. A plurality of photographic lamp boxes 5 and 5 are supported from the table beneath the openingB and houses any desirable number of photographic lamps 6, of any suitable power used for printing the sensitized paper, and disposed centrally between the printing boxes 5 in a box 7 provided at the top thereof with a ruby colored glass plate 8, or other suitable color, to allow only the rays of light to pass through that will not injure a sensitized photographic paper, but will allow the negative to be viewed, said box 7 having housed therein one lamp 9 of lesser candle power than those in the printing boxes 5. Fitted within the rectangular opening 3 and adapted to slide back and forth in the 'guide-k ways 10 is a slidable frame 11 within which is fitted a plurality of glass'plates 12 and 12. and i'ixedly secured to the table at each end of said opening 3, is an electric switch or button 13, connected by suitable wiring to thel lamps 6. so that-.when the frame 11 is moved or slid to the left end ot the opening contact is made with one ot said buttons 13 which lights the lamps in box 5, the lights in box 5 remaining dead, and when the frame is moved to the right end or" said opening contact is made with the other button 13 thus lighting the lamps in the box 5', while the lamps in box 5 reii'iaiirdead, since the movement of the sliding frame away from contact with the electric buttons kwill automatically cut out the photographic lamps within the respective printing boxes, as will be readily understood. y

The numeral 14: indicates a pad provided with a suitable backing l5 used to furnish the desired pressure to the negative and sen sitized paper when in position for exposing, the said pressure being furnished by the springs 16 and 17 which are forced into contact with cach other and held in any suitable or well known manner immediately before the exposure is made. 18 indicates an opening formed through the top of the table and through which the exposed paper prints are dro ped.

It Wi l be obvious that the negatives employed may be either a film or glass plate as desired. Y

It will be readily perceived that the sliding frame 11 may be readily operated by hand, but may be made to operate by foot power or other means such as are already known or used in connection with photographic printing machines...

The operation olf-my improved machine may be briefly described, as follows:

lVhenthe sliding trame 11 is in the position shown in Fig. 1, the glass plate 12 will be in position over the box 5, the lamps 6 therein being lighted to print from the exposed negative, while the plate 12 is in position to receive and be loaded with a new negative and unexposed paper, resting over the box 7 provided with the colored glass plate 8, and when the frame is moved to the right to occupy a position over the box 5 the slide will contact with the electric button and switch on the lights to print Jfrom the exposed` negative carried by the glass plate 12 andthe plate 12 will occupy a positiony to receive and. be loaded with a new negative, thus the shifting of the sliding frame back and forth over the printing boxes 5 and 5 alternately cut outv and light up the lamps in the. respective printing boxes and at the same time that one negative or film is being exposed for printing another negativeand unexposed sensitized paper is properly fedto the frame, thereby permitting the printing operation to continuously proceed, thus enabling the operator to substantially double the amount of work that it is possible to produce on a. single machine, and cutting out the electric lamps in one printing' box while the printing operation is proceeding in the other box.

Having thus described my invention what I claim and desire to secure by Letters Patent is:-

1. A photographic printing machine comprising a table, a plurality of photographie lamp boxesmounted beneath the top of said table, a slidable frame mounted within said table top and provided withfa plurality of glass` plates, and a lamp box provided with a colored glass plate centrally mounted below the table top and between said lamp boxes.

2. A photographic printing machine comprising a table, a plurality of printing lamp boxes mounted below the top of said table, a slidable frame mounted within guide-ways formed in said table top., said trame being fitted with a plurality olE glass plates, and a lamp box provided with a colored glass plate mounted beneath the table top and between said lamp boxes.

3. A photographie printing machine comprising a table, a plurality of printing lamp boxes fixedly secured beneath the top of the table, a slidable frame mounted in rectangular guide-ways formed within said table top, said frame having a plurality of glass plates secured therein, and a lamp box having a colored glass litted thereto mounted below the table topy and between said lamp boxes.

il. A photographic printing machine-cornprisingr a table, a plurality of' printing lamp boxes r'ixedly secured below the top of said table, a rectangular slidable frame Vmounted within the table top, said frame having a plurality or glass plates fitted therein, an electric button secured'to the table at each end of said slidable frame, and a lamp box provided with a colored glass plate secured thereto and mounted beneath the table top and between said lamp boxes.

5. A. photographic printing machine comprising a table, a plurality of' printing lamp boxes mounted beneath the top of said table, a slidable trame mounted in guide-ways formed within said table top, said Jframe beA ing lit-ted with a plurality of. glass plates, an electric button secured to the table at each end of said slidable frame and adapted to be operated by the baclrand forth movement ot' the frame, and a lamp box fixedly secured below the table top and intermediate said lamp boxes having a colored glass plate .fitted thereto.

6. A photographie printing machine comprising a table, aplurality of printing lamp boxes, each box having a plurality of lamps therein and mounted below the top of said table, a slidable frame mounted within the table top, said frame having a plurality of glass plates fitted therein, an electric button secured to the table at each end of said frame connected with the lamps in said boxes, said buttons being operated to cut out and light the lamps in the boxes by the back and forth movement of the slidable frame, and a lamp box xedly disposed between said lamp boxes beneath the table top and provided with a colored glass plate.

WILBUR C. LAMPHIERL 

